I just got this email and I thought it sounds too good to be true and to the extent that it seems laughable. Well, here's a good laugh:

ATTN: English Teacher

APPLICATION FOR YOUR SERVICE

Let me first introduce my self, my name is George Ohiara, I work as a
Recruiting Manager for Abia State University Private Language School

Abia State University Private Language School is currently looking for
young, enthusiastic, and creative teachers of English (Native Speakers
of English and Non-Native Speakers from any country holding BA or a
relevant teaching certificate (Trinity, TEFL, TESOL or equivalent )

After going through ESL Teachers Board website on the Internet your
resume was listed among others. Abia State University Private Language
School is requesting for your updated resume for further previewing.

Compensation and Benefits Package.
1.)A very attractive monthly salary which is Twelve Thousand, Nine
Hundred U.S. Dollars. Paid in US$ or Euros

2.) An open ended contract with high savings potential

3.) Quality single or family housing within the school premises would
be provided for the Employee

4.) Free medical care in Nigeria.

5.) Accident Insurance

6.) Paid airfares allowing full flexibility with holiday travel

7.) Personal effects shipment and excess baggage allowances

9.) Access to some of the finest social and recreational facilities in
Nigeria

Abia State University Private Language School expects you to reply back
immediately by sending your resume if you are interested.

Please note that resumes can be sent as Scanned Email attachment to
.... or contact the undersigned to indicate your
interest.

 Please ensure that your resume includes date of availability, current
photo, copy of passport page and references.
 Contactable referees (by phone) will speed up your application a lot.

I received an email from a pretending German working for an Oil Company over there. He expressed an interest to hire me and made similar fabulous promises concerning benefits, etc.

I phoned him (he provoded a phone number in the mail) and talked to him in English first. From his accent, it was obvious this was a Nigerian I talked to and not someone from Europe or even Germany. Then I talked to him in German on the phone and he did not understand anything. Finally, I told him in English to p... off and never bother me again with his crap emails.

These guys are organised in mafia-like structures, so beware of them!
And tell them to go to hell; all the crap they will tell you is absolutely unfounded and must appear to be fairy tales from Stories of 1001 Nights.
That΄s the only thing they are good at, and the rest you can forget!

Just today, I received a similar email from someone in the UK. They offered me 9.000 Pounds Sterling a month! Again, I phoned that guy and told him to go to hell. I also said that I will hand this matter to the police for furher investigation...

Last week I also received an email like that from someone in Singapore.
I sent this guy an email telling him that I am looking for job that pays me 100.000 USD a month for doing nothing and that I require a red VIP carpet to be there when leaving the plane. Have a guess whether I received an answer....lol.

The email you posted above was nearly perfect. Scammers almost never get these things right. All of the information was realistic, appropriate, all the language was professional.

The ONLY thing that was strange was the large amount of monthly salary.

The first question is, how does someone (the supposed scammer) get so many aspects of the letter, job description, recruiting requirements, documents completely right --- and get ONLY ONE ASPECT astoundingly wrong? It doesn't make sense at all.

I would have assumed some sort of typo, or substitution of the annual salary coupled mistakenly with the claim "monthly".

And they only ask for a resume.

These scammers certainly work differently (and are a thousand times more sophisticated) from Russian scammers.

I would have simply assumed they made a typo, and asked them whether that was the case. It's really a bizarre situation, this attempted scam. How can they know so much about ESL to perpetrate such an accurate offer letter but also imagine that ESL teachers are decent *targets* for a scam?